Lighting fixture



A. DVORAK. LIGHTING FIXTURE. Anucmou man MAY 11. 1922.

1343?,502, I Patented Dec; 5, 1922.

Patented Dec. 5, 1%22.

ANTON DVOR-AK, OF BERVVYN, ILLINOIS,

ASSIGNOR TO BEARDSLEE CHANDELIER MANUFACTURING COMPANY, A. CORPORATION OF DELAWARE.

LIGHTING FIXTURE.

Application filed May 11,

T 0 all to 700m; it may concern Be it known that I, ANTON DVORAK, a citizen of the United States, and a resident of Berwyn, in the county of Cook and State of Illinois, have invented certain new and useful Improvements inLighting Fixtures, of which the following is a description, reference being had to the accompanyin drawin which forms a part of my speci cation.

Iy invention relates to means for removably securing the shades or bowls of lighting fixtures to the holders or shells, which in turn are suspended from or otherwise secured to the wall or ceiling and about the lamp-receiving socket or member in a manner usual in lighting fixtures.

Generally stated, my invention contemplates means adapted to fit the flared neck of the shade or bowl of a lighting fixture and to have interlocking relation with the holder or shell of the fixture, as well as means whereby the first mentioned means will be maintained in its holding and interlocking relation both with the shade or globe and the shell or holder of the fixture.

The object of my invention is to provide a construction which may be readily applied, both to the shade or globe and to the shell or holder without the employment of special tools or the use of set-screws which are apt to produce improper pressure on the glassware; my improved construction permitting expansion and contraction of the various parts of the fixture without interfering with the gripping or hold.- ing function of my improved means.

The objects and advantages of my invention will be more readily comprehended from the detailed description of the drawing, whcrein:-

Figure l is a perspective view of a portion of a fixture provided with my invention; only a portion of the glassware being shown, while portions of the holder are broken away and shown in section.

Figure 2 is a vertical sectional view of my improved holder.

Figure 3 is a cross sectional view taken substantially on the line 3-3 of Figure 2 looking in the direction of the arrows.

Figure 4 is a detail view in perspective of the shade or globe-holding element.

The invention in its specific embodiment comprises a metallic holder or shell 10 which is apertured in its top for the reception of 1922. Serial No. 559,996.

a suitable supporting element 11, which in turn is shown apertured for the passage of the electric wires or conductors. The element 11 is shown provided with a threaded shank to which the lamp-receiving socket or porcelain member 12 is intended to be secured, and which in connection with the, element 11 firmly clamps the shell or hold er 10 in place. The shell or holder 10 may be of any suitable configuration and size with the lower or skirted end flanged as shown at 13; the flange 13being disposed outwardly substantially at right angles to the skirt portion of the shell or holder and at predetermined points, and preferably equi-distances apart, is cut away as shown at 1 1 in Figures 1 and 3. The flange 13, adjacent the cut-out portions, is preferably provided with small upstanding lips or lugs 15.

The shade or globe-holding means is shown in detail in Figure 4 and consists of a split ring or band 16 preferably of more or less resilient metal to permit expansion. The ring or band 16 is provided with clip members or lugs 17 preferably arranged at equi-distances apart,namely, at distances apart corresponding with the cut-out portions 14 in the flange 18 of the shell or holder 10. The clip members or lugs 17 at their lower ends, are suitably secured to the split band or ring 16 and preferably extended laterally therefrom as shown at 18; While the intermediate portions are shouldered as at 19 so that the upper ends will be disposed slightly within the circumfer ence described by the ring 16, and be disposed across the neck of the shade or globe. The shoulders terminate in the horizontally disposedportions or ends 20, of dimensions substantially similar to the width of the flange 13 of the holder or shell 10. The horizontally disposed portions 20 are adapt ed to extend flush with and rest on the flange 13 of the shell or holder 10 when the parts are in assembled relation.

In practice, the encircling band or expansible ring 16 is forced about the flared neck of the shade or globe as shown in Figure 2, while the clips or lugs 17, extending upwardly beyond and slightly over the neck of the shade or globe, are brought to aposition where they will register with the cutaway portions 14 in the flange 13 of the skirt of the shell or holder. The shade or globe with the encircling band or split ring is then raised suiiiciently,relative to the shell or holder 10,to enable the inwardly disposed portions 20 of the clips or lugs 17 to pass over the lips or lugs 15 of the flange 13 on the shell or holder 10 and the shade or bowl, with the encircling band or ring and its clips, then given a partial turn to bring the clips 17 to points intermediate of the cutaway portions 141 above the flange 13 of the holder. The shade or globe may then be released and lowered, thereby bringing the horizontally disposed portions 20' 01" the clips in supporting relation with the flange 13 of the shell. or holder, whereby the shade or globe will be properly supported in place.

Prior to securing the shell or holder 10 in place, namelybefore passing the electric wires through the top thereof, the encircling metallic ring or band 21 is placed about the holder or shell 10. The ring or band 21 is preferably formed with an inwardly disposed arcuate flange 22, having an opening therethrough of less diameter than the diameter of the flange portion 18 of the shell or holder 10. After the shade or globe has been secured in place, as justabove stated, the band orring 21 is lowered into place, as shown in Figures 1 and 2, thereby bringing the band or ring 21 in more or less firm relation with the sides of the clips 17 which will prevent the clips from being accidentally bent or expanded outwardly a distance suflicient to clear the flange 13 of the shell or holder. At the same time, the band or ring 21 will give the fixture a finished appearance; the band or ring acting as a separate or movable skirt portion which encases the flared neck of the shade or holder as well as the clamping means whereby the same is secured in place, while at the same time the shade or bowl will be firmly clamped in place and yet permit the respec tive parts of the fixture to expand and con tract without applying undue pressure on the glassware and without permitting a disassociation of the respective elements.

I have shown what I believe to be the simplest embodiment of my invention, which has been described in terms employed merely as terms of description and not as termsof limitation, as structural modifications are circle the neckof the shade or bowl ot'the fixture, said means having portionsadapted to pass through the cut-away portions of said flange and form overlapping relation with said flange whereby the shade or bowl is-suspended in place, and means' whereby A disengagement of said first with 1 the flange of the shell or holder will be prevented.

2. In a lighting fixture provided with a shade or bowl, a shell or holder disposed above the shade or bowl, expansible means adapted to encircle the neck of the shade or bowhportions of said means being adapted to have interengaging relation with the shell or holder, and means whereby disengagement of said first. means with the shell. or holder will be prevented.

3. I11 a lighting fixture provided with a shade or bowl, a lamp-carrying shell. or holder disposed above the shade or how], expansible means adapted to encircle the neck of'the shade or bowl, Clip members secured. to said expansible means and adapted t'o'have interengaging relation with the'shell or holder, andmeans whereby independent rotative movement of the shade or bowl beyond a predetermined degree will be prevented.

at; In a lighting fixture provided with a shade or bowl having a flared neck, a lampholding shell or holder disposed above the shade or bowl, expansible means adapted to encircle the neck of the shade or bowl, the shell or holder and said means being provided with correlated portions whereby inter-engaging relation between the means and the shell or holder may be provided.

5. In a lighting fixture provided with a shade or bowl having a flared neck, a lampholding shell or holder disposed above the shade or bowl, said shell or holder being provided at its bottom with anoutwardly disposed flange having cut-away portions at predetermined points, the flange adjacent said cut-away portions terminating in upstanding lugs or lips, expansible means adapted to encircle the neck of the shade or bowl, and clip members secured to said means at predetermined points corresponding with the cut-away portions in said flange, said clips being adapt-ed to pass through the cut-away portions and have inter-engaging relation with said flange upon predetermined rotation of the shade or bowl relative to said shell or holder.

6. In a lighting fixture provided with a shade or bowl. a shell'or holder disposed above the shade or bowl, expansible means adapted to encircle the neck of the shade or bowl, said expansible means being pro-- vided with] upwardly and inwardly disposed portions adaptedto have inter-engaging relation with the lower part olthe shell or holder, and a flanged ring or band adapted to encircle the lower end of theshell or holder, said expansible means and the neck of the shade or'bow'l.

7 In a lighting fixture provided with a shade orbow'lhaving' a flared'neck, a shell. or" holder'disnosed above the 'shad'e or bowl and provided at its lower end with o:ut--- 10 of the segmental portions and upon rotation of the shade or bowl, relative to the shell or holder, to provide inter-engaging relation With said segmental flange portions, and a flanged band or ring adapted to encircle the lower end of the shell or holder and said 15 expansible means. I

ANTON DVORAK. Witnesses:

F. R. FARMER, A. J. LENYER. 

